ngOptions - Undefined Value

Currently, I am utilizing AngularJS and have created an object that contains a size property storing an array of objects.

var product = [
  // ..
  sizes: [
    {choice: 'one', order: 1},
    {choice: 'two', order: 2},
    {choice: 'three', order: 3}
  ]
  //..
];

In the view section, I am generating a select box as follows:

<select ng-init="size = product.sizes[0]" ng-options="size.choice for size in product.sizes" ng-model="size"></select>

Although this setup is functional, when I attempt to fetch the currently selected value using a button, it returns undefined: alert($scope.size);

I have replicated the issue here. Additionally, just for entertainment purposes, I recreated a similar scenario (?) in another CodePen here.

The second example functions as intended, whereas the first one does not. Even though I created both, I am unable to determine why one works while the other does not.

Answer №1

Dealing with this issue in Angular is a common challenge. The culprit here is the use of ng-if, which creates a child scope. To solve this, update your model to someObject.size and adjust all related references accordingly. Additionally, within the controller, make sure to include $scope.someObject = {};

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